I was able to replace each of the Duckworks 55w Halogen's in my RV-4 with Taxi-Combo lights from Paul and FlyLED's. I'm VERY happy with the difference and the resulting light output.
I had to enlarge the hole in the bracket just a touch larger but was able to fit the new light in through the lens hole on the leading edge. No need to take the wingtip off (which is good, the builder of my airplane permanently attached them).
O-320, Dual P-Mags, Warnke Prop, Short legs, Manual Flaps, GRT Sport EX